然而，在商品房预售活动中，由于预售人和预购人之间存在严重的信息不对称，商品房预购人知情权受损严重。

However, in the real estate pre-sale activities, and as a result of the pre-sale between potential buyer serious information asymmetry, the right to know potential buyer houses damaged.

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花费门票80月，学生票50元，预售票50元。活动的收入将帮助电影人实现他们未来的电影项目。感谢您的关注！

How much: 80 RMB per ticket, students 50 RMB, pre-sale 50 RMB. Profit of the event will help the filmmakers realize their future projects. Donation appreciated!

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不过，对于在预售前的大规模推介活动中夸许其订票网络“省时方便”的北京奥组委来说，此次系统故障令人难堪。

However, the computer crash is an embarrassment for Bocog, which had hailed the system as "time-saving and convenient" in heavy pre-sale promotions.

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